Accession Number : ADA112202

Title :   MX Siting Investigation. Gravity Survey - Big Smokey Valley, Nevada.

Descriptive Note : Final rept.

Corporate Author : FUGRO NATIONAL INC LONG BEACH CA

PDF Url : ADA112202

Report Date : 28 Nov 1980

Pagination or Media Count : 48

Abstract : The interpretation of Big Smoky Valley gravity data indicates that there are major range-bounding normal fault systems extending the full length of the valley on both sides. The maximum depth calculated in the valley is 4000 feet (1219 m). The calculated bedrock depths are only approximations because little is known about the actual density distribution in and around the valley and the residual gravity anomaly is necessarily based on an interpreted regional field. An average density contrast of 0.50 g/cc between the alluvium and bedrock was used to calculate the thickness of the valley-fill material. Future studies that acquire better density data or measure actual depths to bedrock in deep parts of the valley can be used to refine the gravity interpretation.

Descriptors :   *Valleys, *Gravity, Nevada, Surveys, Gravimetry, Mapping, Contours, Geology

Subject Categories : Geodesy
      Geology, Geochemistry and Mineralogy

Distribution Statement : APPROVED FOR PUBLIC RELEASE